Home / 279,042.36-385,077.92-151,717.65

Finding the Fourth Proportional to 279,042.36, 385,077.92 and 151,717.65

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Solution

The fourth proportional to 279,042.36, 385,077.92 and 151,717.65 is: 209,370.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,042.36 : 385,077.92 = 151,717.65 : x
  2. Step 2: Convert to fraction form
    279,042.36/385,077.92 = 151,717.65/x
  3. Step 3: Cross multiply
    279,042.36x = 385,077.92 × 151,717.65
  4. Step 4: Simplify right side
    279,042.36x = 58,423,117,089.29
  5. Step 5: Solve for x
    x = 58,423,117,089.29/279,042.36
  6. Step 6: Final answer
    x = 209,370.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.